Tube-coupling



(No Model.)

J; L. PB SE. TUBE COUPLING- Patented Feb; 13,1883.

l v Z M W v\\\\\\\\ v a N, PETERS, Pholwlflhognpher, Washingmm i UNITED STATES PATENT OFFICE.

. JAMES L. PEASE, or OHIOOPEE, MASSACHUSETTS.

TUBE-COUPLING.

- SPECIFICATION forming part of Letters Patent No. 272,315, dated February 13, 1883.

Application filed October 26, 1882. (No model.)

ing inclined sides to be received within the other member having detents projecting inwardly through its sides and into said channel. Anoutercasingorbushingoverthe'heads of the detents, and having a channel filled at intervals by cams, by its rotation drives the detents into the channel beneath them or per mits them to clear said channel. Corresponding faces in. both members are drawn into intimate contact by the action of the detents in one section upon the inclined sides of the channel of the other, to form a tight joint.

In the drawings, Figure I is a view of the members of the coupling separated. Fig. II

is a partial sectionalelevation of the members coupled. Fig. III is a view of the detent-bearing section-with the operating cam-ring removed. Fig. IVis a view' of the cam-ring.

FigxV is a section in plan view upon-line m a: of Fig. III, and Fig. VI'is a view of one of the detents detached.

B is one section of a tubecoupling, having the annular channel b,'with its sides inclined to form in effect a V-shaped groove.

01 is an annular shoulder, faced to form a close joint with the end 0 of section 0. The section 0 is provided with one or more det nts, h, arranged'in corresponding openings, h, in its wall, to extend inward'a'nd be opposite the channel b when the section Bis received within It will be seen that when the cams n are notopposite the detents h the part B may be freely inserted or withdrawn 'i'rqm the part 0; but that when the ring D is rotated to bring the cams it over said detents they are forced into the groove 12 to draw the faced portions of the coupling members clearly together.

a In practice, I hinge the detents to elongated straps i in a countersink, m, which, while securing them, permits the proper radial movement; and I also prefer to form springs of the straps i to project the detents inward, for the screw, 0, from the part G, which passes through an elongated opening, .5, therein, the ends of which opening form stops to indicate the opening orclosingofthe detents.

The points of the detents are arranged to come a littleto one side of the inverted apex of channel I), as shown in Fig. II, so as to exerta constant pressure upon the joint surfaces..

In place of a close joint being made-at c d, the end at y may be packed against the shoulder at 'v.

This coupling is well adapted to the objectglass holder of a microscope, where it is fre-j quently necessary to affix the object-glass to the tube with one handwhile manipulations are conducted with the other.

Now, having described my invention, what I claim is- 1. The within-described tube-coupling, consisting of section 13, having groove b, with double-inclined sides, section (3, having one or more wedge-shaped detents h, hinged at the end of flexible arms to swing through sockets in its shell, and ring D, with channels g, and cams n, all combined and operating to, in effecting a coupling, draw corresponding packing-surfaces ofthe two sections into intimate contact, substantially as set forth.

2. In a tube-coupling, the combination, with the section B, having the groove 1), of the section 0, having the hinged spring-detents h, and the ring D, with the interior channel, g, and cams n, and rotation-limiting stop 0 s, theparts being provided with packing-surfaces, and arranged to operate substantially in the manner and for the purpose set forth.

Witnesses: JAMES L. PEASE.

H. A. CH-APIN, WM. H. CHAPIN.

ICC 

